Heel strap



FIG. 1 is a front view of a heel strap, showing my new design; and,

FIG. 2 is a perspective view thereof; shown in a position of use on an environmental shoe with environmental clips.

The broken lines depicting a shoe and clips in FIG. 2 represent environment that forms no part of the claim. All other broken lines depict stitching which is included in the claim. 

CLAIM The ornamental design for a heel strap, as shown and described. 